The Effect of Substituent on Photophysical Properties of Some 4-(2-Substitutedhydrazinyl)Benzenesulfonamides Derivatives

Year 2016, Volume: 9 Issue: 3 - Volume: 9 Issue: 3, 164 - 171, 29.12.2016

Ebru Bozkurt , Halise İnci Gül Kübra Gizem Yıldıztekin Hilal Bakkal

Abstract

In this study, the effect of substituent on the photophysical properties of some sulfonamide derivatives; 4-(2-substitutedhydrazinyl)benzenesulfonamides in which aryl part was changed as phenyl (S1), 4-methylphenyl (S2), 4-chlorophenyl (S3), 4-fluorophenyl (S4), 4-bromophenyl (S5), 4-methoxyphenyl (S6), 4-nitrophenyl (S7), 2-thienly (S8) and 2-furyl (S9) were examined in DMSO: H₂O (1:1 v/v) solution by using UV-Vis absorption, steady-state and time-resolved fluorescence spectroscopy techniques. It was determined that the sulfonamide derivatives studied exhibited fluorescence property at the blue-green region without exception. Their fluorescence properties were varied by changing the aryl part. The photophysical parameters of the sulfonamide derivatives were calculated in DMSO: H₂O (1:1 v/v) solution from the spectroscopic data. Consequently, these molecules having biological activity were spectroscopically characterized, and the effect of substituent on their photophysical properties was examined.